Not sure. But, for MS it's obvious. Take DF, for example. During the 360 vs PS3 gen, DF, a technical gaming channel, naturally was going through a game with a fine tooth comb, looking for things like the amount of grass. Especially during that gen when quite a few games favored 360, and they were quick to recommend that system.
You jump to the beginning of PS4 vs XBO, where it was just a stone hard fact that the PS4 was more powerful, and DF was downplaying the difference. Making it seem like 720p/900p vs 1080p wasn't that big a deal, when before something like 720p vs 640p was, and the game would look great on which ever console you prefer. Of course, they started getting called out on it and had to drop that shit.